S2-2 - Rs-232-C/Long Line Selection; S2-L-Clear To Send; Video Controls Adjustments; Power Supply Controls - Control Data Corporation INFORMATION SYSTEMS TERMINAL II Hardware Maintenance Manual

S2-2 - RS-232-C/Long Line Selection
This switch selects whether the RS-232-C or long line
drivers or receivers will be enabled to transmit and
receive data to and from the central computer.
In the ON (closed), position, the RS-232-C option is
enabled; in the OFF (open) position the long line option
is
enabled.
S2-l-Clear to Send
In the ON (closed) position, this switch forces a constant
Clear to Send signal, thus enabling transmission without
the external CTS (no modem). In the OFF (open) position,
an external signal active is required.
Video Controls Adjustments
The video controls are on the video monitor board. Access
to these controls, as well as function, is described in
section 6.
Power Supply Controls
These potentiometers are on the power supply board. Access
to these controls, as well as their function, is described
in section
6.
INTERNAL INDICATORS
The the video LED and power supply LEOs, are discussed in
the following paragraphs.
Video LED
This red light-emitting diode (LED) indicates power is pre-
sent on the video board; it is discussed in section 6.
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